George t



Dec. 26, 1922.

G. T. PEARSONS.

FIRE EXTINGUISHER.

FILED APR. H, 1918.

GEORGE T. PEAESONS,

0F REV] YORK, N. Y.

FIRE EXTINGUISHER.

Application filed April 11,

T0 (1 7}! is 710m. it may concern Be it known that I, Gnonon T.Pnansons, a citizen of the United States, residing in the borough ofhlanhattan, in the city, county, and State oi? New York, have ini 'entcdnew and useful Improvements in Fire Extinguishers, of which the"following s a specification.

This invention relates to fire extinguishers in which fireextinguishing; liquid contained in a reservoir is discharged under a gaspressrre generated in the reservoir, and it is an object of theinvention to provide an improved generator to normally hold generatingmaterials in separated condition in. the reservoir, said materials beingpermitted to unite by the removal 01" a closure for a receptacleincluded in. the generator and containingone of the generating:materials.

It is a further ohject of the invention to provide a generatorcomprising a chamber carrying a receptacle to contain a liquid gasgenerating material having; an outlet with a rem vable closure withmeans arranged to carr dry generating material in the sting chambersuperposed to the liquid carryins receptacle in the upright position ofthe generator, to permit the closure to move to a position to open theoutlet oi the liquid carrying receptacle and the liquid to flow fromsaid receptacle to unite with the dry pjas generating material when thegenerator is inverted.

It is further object of the invention to provide improved closure meansfor the discharge outlet of the extinguisher, said closure being;operable to automatically close the outlet in the upright position ofthe extinguisher and to move to position to open said outlet when theextinguisher is inverted, and operating to diffuse the liquid laterallyas it discharged from the reservoir.

It is another object of the invention to provide improved supportingmeans for the extinguisher whereby the extinguisher may have movement onan axis transverse to the longitudinal. axis of the extinguisher, andthe supporting means with the extinguisher to have movement on an axistransverse to the movement of the extinguisher in its support.

the drawing accompanying and form-- 1918. Serial 3530. 22?,857.

ing a partof this specification, Figure 1 is w; longitudinal sectionalview of a fire exiguisher showing an embodiment of my invention with theparts in normal inopere position.

euro 2 is a sectional detail plan view of the outlet means for thereservoir taken on the line 2-2 of Figure 1.

Figure 3 is a detail plan view, taken on the line Zl-3 of Figure 1looking in the lircction of the arrows, of means to extend around theoutlet and closure means for the carrier or receptacle for the liquidgas generating material. in. the generator; and

i 1 re i is a plan view of the supporting iz eans for the extinguisherand showing the cxtin isher supported therein.

Similar characters of reference designate lil-ze parts throughout thediiierent views of the drawing.

iilhe embodiment of my invention shown in the drawing comprises areservoir 5 to co'ta n lire extinguishing liquid, such as cerl,-chloride or a compound thereof,

said res *oir having an opening at the top with a r vable closure 6 forthe insertion and removal of the generator and to refill the reservoir.

The reservoir has laterally projecting "munuhms 7 to pivotally supportthe reservoir in a frame 8 to sw ng on an axis transverse y oi and atone side oi the longitudiof the reservoir. To allow the ex- ;usher totip freely in all dire tions to the extinguisher in equilibrium re. on aship. the extinguisher his "frame to have movement on axis, and saidframe is pivotally V i .rted, in the present instance shown as suspendedhy trunnions 9 "from ha 'ers 1O fixed to a ceiling, thereby perthesupporting: frame with the extinguisher to turn on an transversely tothe movement of the extinguisher in the frame, and thus maintain theextinguisher in an upright position, As shown the extinguisher suspendedby the hangers 10 and maintained uprigl'it position by a chain or cable11 attached at one end to the reservoir, as at 12, and passing over apulley ifil wih the other end secured in a suitable manner (not shown).The chain has a link i l of a material which will fuse when thetemperature rises to a predetermined to adjacent the end of the closureill.

Taste. ed to the bz.

will it!ilOlllillilCHlllY assume an inverted position due to thelocation; of the reservoir trunnions 'i at one side ot the longitudinalaxis of the reservoir.

its stated it is an object oi? the invention to provide an improved gasgenerator to create or generatean expelling pressure for the tireextinguishing liquid in the reservoir. lllhiggenerator comprises a,generator chamberjlormed oi a tubular member 16 having an open end. toconstitute the top and at the closed end having a lateral annular flange17' with an outlet, port orports 18 at said end. A. closure for saidtubular n'ieinbcr consists of a tubular shell 19 of greater length anddiameter than the tubular member 16 and is adapted to engage ortelescope over the open end of said member 16 and to co-operate with theannular flange 17 to releasably connect the shell and tubular member 16with a space between the side thereof, thus providing closed chamber or:iieceptacle in which the is generated and from which it is led to thereservoir through the ports 18. Any suitable materials, one of which maybe a liquid and the. other a dry substance, such as sulphuric orhydrochloric acid and bicarbonate of soda. (-oactimg; when combined orunited to gz enerate a gas such as caroonic acid gas.

may be i'itilised as the gas generating medium.

A receptacle orglass bottle 20 l'iaving an outlet to carry the liquiiilor acid is carried in the member 16 the outlet being closed by aremovable closure in the term ot a stopper 21 having a tapered part toengage in the receptacle outlet the normal upright position of thegenerator. A. sleeve member 22 extends around the outlet of thereceptacle and l'!])'\V2tl' l beyond the stopper 2! and having a spideril igurc 9,) at the upper end with a i an 24!: secured in or integralwith the spider extending upward A disk 25 is mounted on the stem abovethe sleeve to have longitudinal moveu'ient to support the dry gasglint-railing material If) to the receptacle ill). 'l his dish 'htlvless ciameter tl'ian the inter r (it the tubular nemher I6 The .ugagesin .1 a .nula member 36 tom of the reservoir and is retained inposition. therein when the ewe tinguisher 's inverted by a rod 27 tiredat one end in a bridge 28 secured to or integral with the reservoirclosure 6. ln operation as the extinguisher assumes an inverted positionand therewith the generator the stopper 21 will .move outward from theoutlet of the receptacle 20 until it is arrested by the spidered end ofthe sleeve 22, with the part of the stopper still. engaging in thereu-zptacle outlet providing a. restricted outlet and thereby permit ofthe gradual :tlow ol the acid troiu the receptacle, said acid over theedges of the disk 25 and as it unites with the bicarbonate of sodagenerati gas, the pressure of which gas in back oi? the disk or plate 25will operate to move the disk along the sten'i 524iand eject the bicarbonate of soda from the member 16 into the generator chamber, thegenerated gas passing out through the ports 18 into the reservoir. Meansin the form of battle plates 37 having minute perforations are arrangedin the generating chamber interposed between the gas generatingmaterials and outlet of the generator. and shown as arranged in thespace between the member 16 and closure 19 and (J'JQTELLG to prevent theentrainment oi the .ing materials with the generated it discharged intothe reservoirit will be olw'ious that should the reservoir and therewiththe generator be again moved t an ioht position that the stopper 21would b t d to its seat and close the outlet of l llldFQCQP'tZl-Clfi!1'20. By the provision of the ileevc menfiber 912 any of the drymaterial wl'iich may pass through the space: between the dish. 25 andthe wall of the member 16 will be lodged on the bottle 20 at the outsideoi? the sleeve member 22 and will be prevented by such sleeve frominterfering with movement ot the stopper as the nverte l. It will beobvious that in inverted position the sleeve engaging around the openingoi the receptacle 20 in ion with the connected stem 24: e11- with theend of the closure 19 will maintain the receptacle at'the closed end ofthetubular member 16, but that the stopper 2i w'll have a limitedmovement outward an from the outlet ot the receptacle 20 The diseluu'geoutlet of the reservoir is through a tuluilar member 30 threaded intothe llOFilll'Q (i, said outlet i'iormallv being closed in the uprightposition of the eX- tinguishcr by a. closure in the term of a disk 2-;seating on the end of a. sleeve 32 threaded onto the member To permitthe closure lo ha vc movement away troin and toward the end of thesleeve 32! and maintain the in I meat with tho end of said c it isiairied b stem 33 projecting i. ,iae groe opening inocei'l'ieut andthereby increasing or decreasing the outlet opening. The llquid as .itis discharged willv be d flused laterally by the closure and tofacilitate such diffusion paraffin, this sealing being; readily brokenby the pressure oi the llquid 1n the TQSBI'VOH. when the extinguisher 1sinverted and the gas generator is set in operation.

Having thus described my invention, I

claim:

1. In a liuid pressure generator for fire extinguishers, a

generating chamber h a v i an outlet with a tubular portion within thechamber; bali'le plates interposed between the wall of the tubularportion and chamber; an acid carrying receptacle in tubular portionhaving an outlet; a stopper for the outlet of said. receptacle; andmeans: to carry a dry-substance in the l." tion superposed to the liquidcm i Vin tacle and arranged With a stop to limit the outward movement ofthe stopper from the acid receptacle for the purpose specified 2. In agenerator for lire extinguish.- ers, a closed receptacle having anoutlet and a central tubular niemljier extending up from. the bottomwith the walls spaced from the walls ol the receptacle. a receptacle tocarry a. liquid and having); an outlet to engage in said tubular member;a stopper for the outlet of said. receptac...e; and means to carry a drysubstance superposed to tie liquid carrying receptacle in the uprightposition of the generator and arranged to allow the stopper to have alimited outward. movement from the outlet of the liquid carrying;receptacle to permit the liquid to flow from the receptacle and unitewith the dry substan e when the generator is ill-- verted. a

3. In a gas generator tor lire cxtinnrisliers, a generating chamberhaving}; an outlet;- a receptacle in said chamber to carry a liquid gasgenerating niaiicrial and having an outlet; 2 stopper tor the rmtlet oilsaid receptacle; means to at'inig' mate .1 V superposed to the liq taclein the upright po ator and arranged with 1min the outward movement ofthe stopper irom. the outlet of the liquid carrying receptacle to permitthe liquid to low from the receptacle and. unite with the dry materialwhen the generator is inverted; and means in the generating chamber toprevent the entrainment and discharge of the generating materials withthe generated gas.

4L. In a gas generator for fire extinguishers, an open end receptaclehaving an outhul ar per-f recep lot in and an annular tlai'ig'e at theclmaerl end; a closurc ljf ielescope over tlicopcn end of the receptacleand soared thm'elirom and oil-operating with the llaugzc or thereceptacle to provide a closed receptacle; a seconi'l receptacle tocarry a liquid gas generating; naterial to engage in the firstreceptacle and having an outlet; a stopper for the outet at said s-rondrecepl'acle; inea s "to carry a dry gas generating material in the Mistrecep acle i. iperposed to the second receptacle in be up ht position ofthe generator and arranged to allow the stoppe to have a limited outmei.IIll't the liquid to llow from said seconu tacle and up 'with the drymaterial hen the r aerutor is verted; and a baflle arre d between theoutlet oi the first receptacle and the closure .to prevent theentrainment and. discharge oi the gas greneratiig materials With theeeneia'ated gas.

n a generator "for fire extinguishers a bllmllfil member open at oneend; a second tuhular member to engage over the open end. of. the firsttnhular ineinl'icr in spaced relation thereto to provide a closedchamber; an outlet from r-iaid CllilllllJOl'; a rerentacle to rarrv aliquid. gl'eueratilug in said "st tuluilar nieinb i s oppri for theoutlet of said it 1' member For the porno-5e 6. In a gas generator forlire extingui ha generating chamber having; an ouhet and a tul'mlarnicn'iber therein open at the end opposite to the outlet; a receptacleto ial oer superposed 1 ceptarle tl'ierein in the 1 it i of theueuerator and arranged to allow lhe stopper to have a limited outwardmovement from the outlet oil' the liquid carrying; reccptaclc to permitthe liquid to ll-aw 'l roin the reccpta'zle and unite with "he drymaterial when the generator in inverted and operable by the generated toeject the superposed gas generating material from the tubular member;and, means in the gener- L movement from the outlet 0'! the sec ondreceptacle to 1 e1 a-ting chamber to prevent the entrainment anddischarge of the gas generating materials with the generated gas.

'7. In a gas generator for fire extinguishers, a generating chamberhaving an outlet; a receptacle to carry a liquid gas generating materialin said chamber having an outlet; a stopper for the receptacle outlet; asleeve to extend around the receptacle outlet and beyond. the stopperarranged to permit of a limited outward movement of the stopper andhaving a stem extending to the end of the generating chamber; and meansmounted on said stem to carry a dry gas generating material superposedto the liquid carrying receptacle for the purpose specified.

8. In a gas generator for fire extinguishers, a generating chamberhaving an outlet; a receptacle to carry a liquid gas generating materialin said chamber having an outlet; a stopper for the receptacle outlet; asleeve member to extend around the receptacle outlet and beyond thestopper and arranged to permit of a limited outward movement of thestopper; having a stem extending to the end of the generating chamber;and means mounted on said stem and means to carry a dry gas generatingmaterial superposed to said sleeve and the liquid receptacle as and forthe purpose specified.

9. In a gas generator for fire extinguishers, a generating chamberhaving an outlet; a receptacle to carry a liquid gas generating materialin said chamber having an outlet; a stopper for the receptacle outlet; asleeve member to extend around the receptacle outlet and beyond thestopper and arranged to permit of a limited outward movement ofthestopper, said sleeve member having a stem; and a disk movably mountedon said stem to carry a dry gas generating material superposed to thereceptacle, for the purpose specified.

10. In. a fluid pressure generator for fire extinguishers, a generatingchamber having an outlet with a tubular portion within the chamber; anacid carrying receptacle in said tubular portion having an outlet; astopper for the outlet of said receptacle; means to carry a drysubstance in the tubular portion superposed to 'the acid carryingreceptacle andfarrangedto limit the outward movement or the stopperQfromtheacid receptacle, said acid anddry substance being adapted to generategas 'ivhen'mi'xe'd and battles in the genera-ting chamber to prevent theentrainment er the acidand dry'substance with the dis charge of thegenerated gas.

11. In a ffiuid pressure generator for fire extinguishers, a generatin gchamber having an outlet and arranged to normally carry gas generatingmaterials in a separated condition, and batlles in the" generatingchamher to prevent the entrainment and discharge of the gas generatingmaterialswith the generated gas.

152. In a fluid pressure generator for fire extinguishers, a generatingchamber having an outlet ;'means'arranged in the generating chamber ton-ormally'carry gas generating materials in a separated condition in theupright position of said generator and permit said materials to mixandgenerate gas when inverted; andbafiies interposed between said means andthe outlet to prevent the entrainment and discharge of thegas generatingmaterials witlrthe generated gas.

13. In a chemical f gas generator for fire extinguishers, a generatingchamber having an outlet; means in saidchamber to maintain generatingmaterials in a separated condition in the upright position of thegeneratorand to permit said materials to mix when the generator isinvertedfand' baffles in the generator for the purpose specified.

14. In a chemical gas generator for fire extinguishers, a generatingchamber having an outlet and arranged with an open end tubular membercentrally thereof; a receptacle to carry gas generating material in saidtubular member having an outlet; means to carry another gas generatingmaterial in the tubular member superposed to the receptacle therein;andfbafiles arranged between said tubular member and the outlet forthepurpose specified.

eno. 'r. PEARSQNS;

